Low-Cost IoT-based Indoor Air Quality Monitoring
Research Poster Engineering 2025 Graduate ExhibitionPresentation by Hanin Othman
Exhibition Number 40
Abstract
Indoor air quality (IAQ) is gaining significant interest as an essential determinant of human health, productivity, and well-being, necessitating the development of environmental sensing systems with cost-effective air quality monitoring setups. In this article, we report on our ongoing research addressing the problem of limited access to affordable IAQ monitoring solutions. We aim to design, develop, and prototype a small, low-cost IAQ monitoring system that could serve as an Internet-of-Things (IoT)-based network for sensors for building post-occupancy evaluation. In this endeavor, we constructed a stationary multi-sensing device capable of real-time monitoring and visualization of six IAQ indicators with the potential to connect to similar devices in the built environment. Additionally, we explore the integration of the IoT to store, visualize, and analyze the data.
Importance
This study is significant as it provides an affordable, scalable solution for indoor air quality (IAQ) monitoring using low-cost IoT-based sensors. Poor IAQ is linked to health issues, especially in vulnerable communities, and current monitoring systems are often expensive and complex. By utilizing low-cost sensors, this research enables real-time monitoring of multiple IAQ parameters like CO2, temperature, humidity, and VOCs. The integration of IoT ensures easy access to data, promoting better decision-making for building owners and facility managers. This system offers an accessible solution for improving air quality management, optimizing energy efficiency, and enhancing public health, especially in settings where high-end solutions are unaffordable.
DEI Statement
My research on developing low-cost IoT-based indoor air quality (IAQ) monitoring systems addresses health disparities, focusing on underserved communities that often lack access to effective environmental monitoring. Poor IAQ disproportionately affects marginalized populations, exacerbating respiratory and cardiovascular conditions. By creating an affordable, scalable solution for real-time IAQ monitoring, my project aims to empower vulnerable groups with the tools to improve their living conditions. This work contributes to advancing economic justice and public health equity by offering a practical solution that enhances environmental awareness and fosters healthier, safer indoor spaces, especially in communities with limited resources for conventional air quality management.